# Waterworks Calculations — weirs, channels, pipes, flow

> Fluid flow and civil engineering calculators for weirs, channels, and pipes. (iPhone/iPad app by V PUGAZHENTHI.)

- Source: https://appshunter.io/ios/app/waterworks-calculations/id1133509204 (this page in markdown: same URL + `.md`)
- Developer: [V PUGAZHENTHI](https://appshunter.io/developer/491898049)
- Category: Education, Reference
- Price: Free with in-app purchases
- Rating: 4.50/5 from 6 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 12.0 · 14 MB
- Languages: Dutch, English, French, German, Italian, Portuguese, Spanish
- Released: 2016-07-18
- Data updated: 2026-06-10
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/waterworks-calculations/id1133509204/reviews.md

## What is Waterworks Calculations?

Fluid Flow Calculator : contains 94 Calculators for calculating flow in Weirs,Channels,Pipes,Water works and Civil Engineering parameters.
- Available in Metric ( SI ) and Imperial Units ( USCS )
• Capillary Rise 
• Viscosity 
• Kinematic Viscosity 
• Hydrostatic Pressure 
• Pressure Head 
Offered as in-App purchase :
• Velocity Head 
• True Velocity Head 
• Specific Energy Head 
• Head Loss (Bernoulli Equation) 
• Total Energy - Elemental Volume of Fluid 
• Total Head of Flowing Fluid 
• Average Velocity of Flow 
• Summation of all Forces (X direction)

• Froude Number 
• Reynolds Number 
• Weber Number 
• Head Loss due to Friction 
• Head Loss due to Friction (Darcy-Weisbach Formula) 
• Chezy Velocity 
• Chezy Coefficient

• Manning Flow Velocity 
• Manning Flow Velocity using Pipe Diameter 
• Flow Rate (Manning Formula) 
• Head Loss due to Friction (Manning Formula) 
• Pipe Diameter (Manning Formula)

• Mean Flow Velocity (Hazen-Williams) 
• Mean Flow Velocity - Pipes Flowing Full (Hazen-Williams) 
• Fluid Flow Rate (Hazen-Williams) 
• Head Loss due to Friction (Hazen-Williams) 
• Pipe Diameter (Hazen-Williams)

• Head Loss across a sudden enlargement of Pipe Diameter (Bernoulli Equation & Archer Equation)
• Head Loss due to Gradual Conical Enlargement
• Head Loss across a sudden contraction of Pipe
• Head Loss across a sudden contraction of Pipe (Brightmore Equation)
• Head Loss - Pipe Fittings

• Loss Coefficient
• Orifice Flow Rate
• Coefficient of Contraction
• Initial Velocity of Fluid Jets
• Gage Pressure at Tube Entrance (Conical Tubes)
• Velocity of Wave in a Pipe (Water Hammer)
• Internal Pressure in Pipe 
• Stress on Pipe Material 
• Section Factor 
• Critical Depth of Flow - Open Channel Flow

• Force - Hydraulic Jump
• Rate of Change of Momentum - Hydraulic Jump
• Head Loss - Hydraulic Jump
• Stress on Pipe due to Temperature Change
• Movement in Length of Pipe due to Temperature Change
• Resultant Force on Bend in Pipe

• Elevation Difference between Headwater and Tailwater (Entrance and Exit Submerged) 
• Velocity of Flow in Culvert (Entrance and Exit Submerged) 
• Elevation Difference between Headwater and Tailwater (Entrance Submerged/Unsubmerged & Free Exit) 
• Velocity of Flow in Culvert (Entrance Submerged/Unsubmerged & Free Exit)

• Flow Rate - Open Channel Flow 
• Average Velocity - Rectangular Channels 
• Critical Depth - Rectangular Channels 
• Flow Rate - Rectangular Channels 
• Discharge of Fluid per Unit Length - Rectangular Channels 
• Minimum Specific Energy - Rectangular Channels

• Average Velocity - Triangular Channels 
• Critical Depth - Triangular Channels 
• Flow Rate - Triangular Channels

• Average Velocity - Parabolic Channels 
• Critical Depth - Parabolic Channels 
• Flow Rate - Parabolic Channels

• Average Velocity - Trapezoidal Channels 
• Critical Depth - Trapezoidal Channels 
• Flow Rate - Trapezoidal Channels 
• Minimum Specific Energy - Trapezoidal Channels

• Area of Cross Section - Circular Channels 
• Critical Depth - Circular Channels 
• Top Width - Circular Channels 
• Flow Rate - Circular Channels

• Flow Rate - Rectangular Weir 
• Flow Rate - Triangular Weir (Notch Angle of 90 degrees) 
• Flow Rate - Triangular Weir (Notch Angle of 60 degrees) 
• Flow Rate - Triangular Weir (Notch Angle of 30 degrees) 
• Flow Rate - Trapezoidal Weir 
• Flow Rate - Broad Crested Weir

• Quantity of Sediment transported as Bed Load (Schoklitsch Formula) 
• Evaporation Rate (Meyer Equation) 
• Wind Factor 
• Peak Discharge (Rational Formula) 
• Rainfall Intensity (Steel Formula)

• Flow Rate - Groundwater (Darcy's Law) 
• Fire Demand Rate 
• Flow Rate - Gravity Well (Dupuit Formula) 
• Flow Rate - Artesian Well 
• Economic Pipe Diameter 
• Flow Rate - Venturi Flow Meter 
• Power obtained from Water Flow

## Key features

- 94 Calculators for fluid flow
- Calculations for weirs, channels, pipes
- Metric and Imperial units
- Civil engineering parameters
- In-app purchase for advanced features

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Waterworks Calculations | $3.99 | one-time |


## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/waterworks-calculations/id1133509204/reviews.md

### 5/5 — Outstanding application for calculating water flows.

*2019-08-16*

One cannot ask for a more comprehensive app on calculating water flows in a number of contexts.

## Frequently asked questions about Waterworks Calculations

### What types of calculations does Waterworks Calculations offer?

Waterworks Calculations offers 94 calculators for fluid flow in weirs, channels, and pipes, as well as civil engineering parameters. It includes calculations for viscosity, hydrostatic pressure, head loss, and flow rates using various formulas like Manning and Hazen-Williams.

### Does Waterworks Calculations support different unit systems?

Yes, Waterworks Calculations is available in both Metric (SI) and Imperial Units (USCS), allowing users to perform calculations according to their preferred system.

### What is the pricing for Waterworks Calculations?

Waterworks Calculations is free to download and use. Some advanced features are offered as in-app purchases.

### What is the age rating for Waterworks Calculations?

Waterworks Calculations has an age rating of 4+, making it suitable for a wide range of users.

### On which devices can I use Waterworks Calculations?

Waterworks Calculations is supported on iPhone, iPad, and iPod devices.

### How often is Waterworks Calculations updated?

The latest version of Waterworks Calculations is 3.2, and it was last updated on December 13, 2020. This indicates a moderate update frequency.

### What are the advanced features available through in-app purchase in Waterworks Calculations?

Advanced features offered via in-app purchase include calculations for Velocity Head, True Velocity Head, Specific Energy Head, Head Loss (Bernoulli Equation), and Total Energy - Elemental Volume of Fluid, among many others.

### Does Waterworks Calculations have ads?

No, Waterworks Calculations does not contain advertisements.

## Version history (last 5 releases)

### 3.2 — 2020-12-13

- updated for iOS 14
- fixed an error in Peak Discharge (Rational Formula)

### 2.3 — 2019-10-01

- updated for iOS 13
- looks great in dark mode

### 2.2 — 2019-09-07

- few errors fixed

### 2.1 — 2019-08-27

- fixed an error in the V - Notch Weir flow calculations

### 2.0 — 2019-08-14

New user-Interface
in-App purchase is made easy

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All apps by V PUGAZHENTHI: https://appshunter.io/developer/491898049

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-10.*